Good morning.
I write a driver for a device which has 1 interface with 3 alternate
setting.
The interface 0 setting 0 has 3 endpoints:
EP0
EP1IN Interrupt 2 ms 2 byte
EP2IN Interrupt 1 ms 64 byte
EP2OUT Bulk 64 byte
The interface 0 setting 2 has 3 endpoints:
EP0,
EP1IN interrupt 2 ms 2 byte,
EP2IN Interrupt 1 ms 64 byte.
EP2OUT Interrupt one-shot 64 byte,
It start in interface 0 setting 0.
This happens:
1. Write to EP2OUT Bulk:
I see the transaction of bulk operation in the debug log.
2. Swicth to setting 2.
3. Write to EP2OUT Interrupt:
All usb API goes OK, but the complete handler of interrupt isn't
thrown by usb controller (OHCI).
When I unplug the device I see the complete handler throw regulary.
If I switch to setting 2 without send on bulk before all works fine.
Where is the matter?
Thanks to all
Mauro
Why this happens?
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